Created
May 29, 2018 02:53
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use addEventListener to listen the click and change the background color
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>color changer</title> | |
| <style type="text/css"> | |
| button{ | |
| font-size: 20px; | |
| margin: 50px; | |
| } | |
| .ispink{ | |
| background: pink; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <button>click me!</button> | |
| <script type="text/javascript" src="colorchanger.js"></script> | |
| </body> | |
| </html> |
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| var button = document.getElementsByTagName("button")[0]; | |
| // var ispink = false; | |
| // button.addEventListener("click", function(){ | |
| // if(!ispink){ | |
| // document.body.style.background = "pink"; | |
| // } | |
| // else{ | |
| // document.body.style.background = "white"; | |
| // } | |
| // ispink = !ispink; | |
| // }); | |
| button.addEventListener("click",function(){ | |
| document.body.classList.toggle("ispink"); | |
| }); |
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